GIS Dig

GIS Explorers Team: . . . . Tue, Sep 17, 8:07AM PST (-0800 GMT)
NOTE: Please be sure to include your name and school name in the YOUR HANDLE box before posting, and then include the Question # as you answer, and submit complete sentences that include the question in the answer, ie, not ‘GIS’ but “GIS stands for Geographic Information Systems” to create a full answer.

GIS Explorers Team: . . . . Tue, Sep 17, 8:08AM PST (-0800 GMT)
GIS DIG #1 – Describe at least six tools that have been used to understand where a place ‘is’ in relation to its surroundings since geography first began being observed …. button

GIS Explorers Team: . . . . Tue, Sep 17, 8:08AM PST (-0800 GMT)
GIS DIG # 2 – In the third century BC, a Greek mathematician estimated the circumference of the earth. Who was he? How did he do this, what distance did he estimate, and how close was he to the correct measurement? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:08AM PST (-0800 GMT)
GIS DIG # 3 – What is navigation and what is it used for ? Can you name at least three famous explorers who relied on navigation? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:08AM PST (-0800 GMT)
GIS DIG # 4 – What are the basic units of measurement for navigation and how did a map maker named Mercator help establish these units of measurement? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:09AM PST (-0800 GMT)
GIS DIG #5 – Describe at least three types of maps based on what their intended use has been for. What is the name of the practice of map making and is it an art or a science ? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:09AM PST (-0800 GMT)
GIS DIG #6 – Maps today rely on instruments on and above the earth to generate data. What do remote sensing devices do that helps mapmakers today? And where are they located? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:09AM PST (-0800 GMT)
GIS DIG #7 – What is latitude and longitude? How is the equator used to create plus and minus numbers? And how / where is the Greenwich that determines East and West readings(read carefully to find this answer)? button

GIS Explorers Team: . . . . Tue, Sep 17, 8:12AM PST (-0800 GMT)
FOLLOW UP ACTIVITY – post your SCHOOL LOCATIONS FIELD REPORT by going to the workroom at button

SJ Marissa,Alexis: . . . . Mon, Oct 21, 1:40PM PST (-0800 GMT)
Q1 Some early tools that were used by people were eyes,theodolite,chonometer, sun,moon,stars,sextant, compass,a teloscope, and many more.

SJ Neil,Joseph: . . . . Mon, Oct 21, 1:41PM PST (-0800 GMT)
q1 Six early tools were the sextant, the compass, the telescope, the theodolite, the planetable, and the chronometer. These were used to indicate where you were.

SJ Neil,Joseph: . . . . Mon, Oct 21, 1:41PM PST (-0800 GMT)
q1 Six early tools were the sextant, the compass, the telescope, the theodolite, the planetable, and the chronometer. These were used to indicate where you were.

SJBrooke,Mary: . . . . Mon, Oct 21, 1:41PM PST (-0800 GMT)
Q1m Six tools that people used to find out where they were are the telescope, compass, measuring string, sextant, planetable, and the theodolite.

SJ Alex&Julia: . . . . Mon, Oct 21, 1:42PM PST (-0800 GMT)
Q#1: Some tools that were used to find out where you are were the magnetic compass, the telescope, the measuring string, the sextant, the marine chronometer, the theodolite, and the planetable.

SJ Teresa: . . . . Mon, Oct 21, 1:42PM PST (-0800 GMT)
Q1 Six early tools that were used to find out where you were the planetable, telescope, theodolite, measuring chain, compass, and the sun.

SJ Elena,Cris: . . . . Mon, Oct 21, 1:44PM PST (-0800 GMT)
Q1 Six tools in the early days to find the location they were in are theodolite, chronometer, compass, teiescope, measuning strings, and sun,moon,and stars.

SJ Laura,Simon: . . . . Mon, Oct 21, 1:45PM PST (-0800 GMT)
Q1 Six tools people used to navigate were the compass, the telescope, the measuring string, the planetable, the sextant, and the chronometer.

SJAndreina, Sierra: . . . . Mon, Oct 21, 1:46PM PST (-0800 GMT)
Q1 Some tools that told where you are, are our eyes, and also the sun ,moon ,stars,plantable,compass and a telescope.

SJ Ted and Emily: . . . . Mon, Oct 21, 2:12PM PST (-0800 GMT)
Q #3 Navigation is the ability to find your way from one place to another and back. Navigation is used for measuring distances and succesful travels. Some succesful explorers who used navigation were Columbus, Shackleton, Cortez, Cabrillo, and Zheng He.

SJ andy& kevin: . . . . Mon, Oct 21, 2:13PM PST (-0800 GMT)
#3 Navigation is the ability to find your way from one place to another. It is used for measuring distances and survival. Three famous explorers who used navigation were Columbus, Shackleton, Cabrillo.

SJ Casey: . . . . Mon, Oct 21, 2:13PM PST (-0800 GMT)
#3 Navigation: is the ability to find your way from one place to another and back. It is used for measuring distances, survival, so you don't get lost, & so you get successful travels. Three famous explorers are: Cortez, Columbus, & Cabrillo.

SJ Alexs,Kelly: . . . . Mon, Oct 21, 2:13PM PST (-0800 GMT)
#3 Navigation is the special ability to find your way to get to other places. Navigation is used for survival distance. Three famous explorers were Columbus, Zheng He, and Cortez.

SJ Esther Jon: . . . . Mon, Oct 21, 2:14PM PST (-0800 GMT)
3. Navigation is often defined as "the ability to find your way from one place to another", and is used to measure distances, and for successful travels. Some famous exlorers who used navigation were Columbus, Shackleton, Cortez, Cabrillo, Zheng He.

SJ Bethany & Annabelle: . . . . Mon, Oct 21, 2:16PM PST (-0800 GMT)
Q3 Navigation is an abllity to find your way from one place to another. It is used for measuring distances, to help you to survive, for a successful travel, and it helps you not tto get lost. Three people that used navigation were Cortez, Columbus, and Cabillo.

SJ Tayler,Joanna: . . . . Mon, Oct 21, 2:17PM PST (-0800 GMT)
#3 Navigation is ability to find your way from one place to another. It is used for measuring distances, survival so you don't get lost, and succesful travel's. The three famous explorers who used navigation were Columbus, Cortez, Cabrillo.

SJ. Beatriz&Richard: . . . . Mon, Oct 21, 2:19PM PST (-0800 GMT)
Q3 Narigation is abillty to find your way from one place to another. It is used for measuring distances,survival so you don't get lost,and to have successful travel's.Three famous explorers who used navigation were:Columbus,Shackleton,Cortez,Cabrillo,Zheng'He.

SJ Lauren,Zack: . . . . Mon, Oct 21, 2:19PM PST (-0800 GMT)
Q3 Navigation is a use of tools, longatude,and latatude to find your way. Five explorers who used navigation were Columbus, Cortez, Shackleton,Zeng Heh, and Cabrillo.

SJ Ted and Emily: . . . . Mon, Oct 21, 2:21PM PST (-0800 GMT)
Q #1 Six tools that have been used to understand where a place is, are your eyes, the sun, moon, stars, the measuring chain, and the telescope.

RWMS MICHAEL BALL CJ VILLANUEVA: . . . . Thu, Oct 31, 9:52AM PST (-0800 GMT)
1. The level,sigth,maesuring chain,sextant,telescope,and the theodolite. 2. Suchow Planisphere. 2a. With a compass at 25,000 mls. within 500 mls. 3. The ability to find a way from 1 place to another and back. 3a. Columbus,Shackalton, and Mercator. 4. Latitude and Longitude lines. 4a. YES 5.Base map,Versitile map,atlas and earthquake map. 6.The GPS unit. 7.They are sphereical cooridinates on the earth's surface. 7a.120~ W and 240~ E (+) for west or east.

RWMS PEDRO JIMENEZ RICHARD REYES: . . . . Thu, Oct 31, 9:52AM PST (-0800 GMT)
1 THEY USED

rwmsDestiny Westwood: . . . . Thu, Oct 31, 9:54AM PST (-0800 GMT)
1)Magnetic Compass,Sextant,telescope,theodolite,planetable,and a marine chromometer. 2)His name was Eratosthenes. 2a)They used observations of shadows,and distance to calculate circumference.He calculated 25,000 miles,and the actual distance is 25,500 miles so as you can see he was only 500 miles off. 3)The ability to find a way from one place to another and back. 3a)Columbus,Sir Ernest Henry ,and Itenry Shakelton. 4)Circumfrence and distance. 4a)No 5)Versatile topographic map,and a thematic map.It is cartography both art and science. 6)satelites and space. 7)North or south of the equater.resulting in range of positive and negative numbers. 7a)Greenland

rwms bianca barnes: . . . . Thu, Oct 31, 9:57AM PST (-0800 GMT)
1.they watched how the stars,sun,moon, and sky changed. 2. sir ernest henry shackleton. 2a. used observation of shadows and distance to calculate circumfrance of 25,000 miles, he was only 500 miles off. 3. the ability to find a way from one place to another and back. 3a. columbus, sir ernest henry shackleton, polar explorers. 4. distances, directions, shapes, or areas as they are pn a globe . 5. versatile, topographic maps, thematic maps, and cartography both are science. 6. satalites, space 7. anything below the equator is negative and above is positive . lattitude is parralell and longitude is meridian. 7a. greenland

RWMS Eric Mercado: . . . . Thu, Oct 31, 10:00AM PST (-0800 GMT)
1.The six tools are, cqmpass, the sextant, the telescope, thetheodolite, the planetable, and the submarine telescope. 2.He was Eratosthenes.He observed shadows and distances.He calculated 25,000 miles, accurate to within 500 miles. 3.Navigation is the ability to find a way from one place to an other and back.Navigation is used to get to your destination.Three explorers who used navigation where Columbus, Sir Ernest Henry Shackelton, and sea explorers. 4.The basic units of measurement on navigation are , area, shape, scale, and direction.Yes he did. 5.The topographic map, the matic map, and a world map.It is called cartography and is art and science. 6.It gathers gravity,magnetic and other data, the satelites are in space. 7.Latitude and longitude are spherical coordinates on the surace of the earth.Any point above the equater is posotive, ant point below is negative.Greenwich is located right on the prime meridian.

RWMS PEDRO JIMENEZ RICHARD REYES: . . . . Thu, Oct 31, 10:05AM PST (-0800 GMT)
1They used telescopes,sextant,theodolite,compass and amarine chronometer. 2His name was Eratosthenes. 2a He calculated about 25,000 and it was 24,000 thousant. 3The ability to go from place to place and find th different places. 3a Columbus,Sir ~Ernest,Shakeloten. 4 Lonlittude and Lattittude. 4a Yes he established the units. 5 Vestite map,basemap and the atlasmap. 6 The Gps unit. 7 They are sphercal coordinates on the surface of the earth. 7a 120~ west and 240~east.

rwms kristina barcelo: . . . . Thu, Oct 31, 10:06AM PST (-0800 GMT)
1.the level, the sight, the measurement chain, the magnetic compass, the sextant, the telescope, and the treodlite. 2. his name was eratothens. 2a. thedistance he measured was 25,000. he was off by 500. 3. navigation is te ability to find a way from one place to another. its used for travel. 4.the basic units of measure are distances, direction, shapes, andareas. 5. there is a vertice map, a base map, and topraphic map. 6. they collect data from the electromagnetic spectrum. 7. latitude and longatude are sphercal coordinates on the surface ofthe earth. 7a. longatude demens east and west.

: . . . . Thu, Oct 31, 10:09AM PST (-0800 GMT)
1.the level, the sight, telescope, sextant, theodolite, planetable, marine cronometer. 2.eratothenes was a greek mathematition. 2a.he used observations and distances. 3. navigation is what you are taking lif you are lost. 4.distance, directions, shapes and areas. 5.versitile map, base map. topagraphic map. and science. 6.they are called gis units. 7.they are sperical coordinates on the surface of the earth. 7a.it doubles frome east to west. eddy ruiz and freddie RWMS

rwms DAVID REZA: . . . . Thu, Oct 31, 10:11AM PST (-0800 GMT)
the level,the sight,the measuring chain,magnetic compass,sextant telescope. 2.his name is eratosthenes 2a.the distance measured was 25,000 miles he was acurte far about 500miles he didint by observing the shatus. 3.navagation is the ability for a way from places to another.3a.sirernest,columbus,greds mer-chpehdons. 4.distance,shapes,or areas as they are on a globe. 4a.yes,he did 5.thereis uper side map shows cities.a base map which shows us how old maps were,topog raphic map. 6.electric magnets. 7.are spherical coordinales on the suface of the earth. 7a.arbitary

RWMS Julio Gonzalez: . . . . Thu, Oct 31, 10:12AM PST (-0800 GMT)
1.Musnetis Compass,sextant,telescope,theodolite,plantetabel,and Marine Choonante. 2.Eratosthens. 2A.used observetion of shadow and distance to calculate the circumfrence.About 25,000 miles was accurate within 500 miles. 3.navigation is when you get lost.Sir Ernest Scaackelton,Columbus,and Cantino Planshere 4.Distance,direction,shapes,or areas 4A.yes,he establish these units of measurement 5.Versctile map,base map,andtopograpic map.Science 6.Electromagentic Spectrum outside narrow band of visibel ligit. 7.Spherical coordinate on the urface of earth.Ponits above eqauater are postive 7A.It dobles from east to west.

: . . . . Thu, Oct 31, 10:15AM PST (-0800 GMT)
1. Level, sight, measuring chain, magnetic compass, sextant, telescope. 2. Eratosthenes,Used shadows and distances, 25,ooo miles, whithin 5oo miles. 3. Theability to find a way from one place to another and back,Columbus, Sir Ernest Henry, Cantino Planisphere. 4. Distances, directions, and shapes. 5. Versatile map-Topographic, Al Idrisis map shows theAribean penninsula, Geographic map. 6. Satellites,space. 7. Spherical cordinates, divides the globe into two halves ,120 degress W, 240 degress e.

: . . . . Thu, Oct 31, 10:16AM PST (-0800 GMT)
1.The level sign, measuring chain, magnetic compass, sextant, telescope. 2.Eratosthenes, used shallows and distance, 25,000 miles, within 500 miles. 3.The ability to find a way from one place to another and back, Colombus Sir Ernest Henry,Cantino plainsphere. 4.Distance,directions,and shapes. 5.Versatile map-Topographic, Al Idrisis map shows the aribean penninsula, geographic map. 6.Satellites,space. 7.spherical cordinates, divides the globes into 2 halfs, 120 degrees,240 degrees.

RWMS,BrunoGarcia MauiCoyt: . . . . Thu, Oct 31, 10:17AM PST (-0800 GMT)
1.The tools where level,sight, mesuringchain,mathematics,magneticcompus,thesextant,telescoo thedalite. 2.He was Eratostythenes

RWMS Jonny Santos Gilberto lopez: . . . . Thu, Oct 31, 10:17AM PST (-0800 GMT)
1.Magnetic compass, the sextant, the telescope, theolite, the planetable, and the marine chronometer. 2.The Greek mathematician was Eratosthenes. 2a.His estimate was about 25,000 miles and he was 500 miles away fromthe correct answer. 3.Navigation is the ability to find a way from one place to another and back. 3a.The three famous explorers who relied on navigation are Columbus, polar explorers, and Sir Ernest Henry Shackleton. 4.The basic units of measurement for navigation are area, shape soale, and dorection. 4a.Yes, a mapmaker named macerator help establish these units of measurement. 5.

rwms Leonardo Robles: . . . . Thu, Oct 31, 11:31AM PST (-0800 GMT)
1.The magnectic compass,the seatant,the telescope,the theodolite,the planetable,and the marine chronomenter. 2.His name is Eratosthenes that estimated the earth. 2A.He estimated the Earth would be about 25,000 miles, was accurate to within 500miles. 3.The ability to find a way from one place to another and back. 4.The latitude and longitude were the basic units. 4A.Yes he establish these inits of measurement. 5.The purposes may show roads,towns and units. 6.To get photographs of the world they are located in science and technology. 7.Are spherical cordinations on the surface of the earth.Equator,resulting in a range of-90[s pole] to+90 n [pole] degrees. 7A.120 degrees West Longitude is also 240 degrees East Longitude since the earth is round and 360 degrees makes a circle.

rwms Alex Perez: . . . . Thu, Oct 31, 11:45AM PST (-0800 GMT)
1.The tools are,the magnetic compass,sextant,telescope, the odilite, planetable and marine chronometer. 2.He was Eratosthenes. 2A.His cauculation, about 25,000 miles, accurate to within 500 miles. 3.The ability to find a way from one place to another and back. 4.A globe,ora flat map. 4A.Yes, he did help establish these writes of measurment. 5.Some maps are used for streets, rivers,and cities. 6.They help you find your way if tuo are lost and they are locatedin visible light. 7A.The equator is parallel that divides the globe, into two halves. 7A.Some used requires (+) for west, others used (+) for east.

RWMS Eddie Solano Francisco Lopez: . . . . Thu, Oct 31, 11:45AM PST (-0800 GMT)
1.The magnetic compass, the sextant, the telescope, the theodolite, plantable marine chronometer. 2.He was Eratosthenes. 2A.He observed the shadow, he estimated 2,500 miles he was 500 miles off. 3.The way you find your way around. And to find your way around. Columbus, Sir ernest Henry, and shakleton were the ones. 4. Distance, directions, shape, or areas those are the one. 4A. Yes he did. 5. Veratile, topographic, thematic, earthquake, and battle maps. 6.They tell them where they are. They are in space. 7.Imagineary lines around the earth. It is in the middle. 7A.It goes through England.

rwms leticia arias: . . . . Thu, Oct 31, 11:48AM PST (-0800 GMT)
1.The compass sextant, telescope,theodlite,planetable,and marine chronometer. 2.Suchow Planisphere 2a.He used alongitude was not possible until 1765,when the marine chrohometer was introduced. 3.It is to find away from one place to another and back. 3a.Columbus,Polar,Sir Ernest Henry Shackleton. 4.It was because a data for survival. 4a.Distances direction shapes or areas of the globe. 5.It was the some of the 20th centary. 6.It was call state and local bounclaries. 7. Is a line surface of the earth,spherical coordinates. 7a.It is expressed in different ways.

rwms Antonio camacho: . . . . Thu, Oct 31, 11:48AM PST (-0800 GMT)
1. Canyons , rivers , sansd dooms , School roads 2.eratostherne was a math matjition 3.they are flat maps disort the placement 4.the derection are streight lines 5.Columbas was not sure hoe far he had gone 6.they are lacated in space 7.in range of -9(South pole)po+90(northe pole)dagrees 7.200 deggres east .

rwms gracie ochoa : . . . . Thu, Oct 31, 11:50AM PST (-0800 GMT)
1.We may see canyons,rivers,sand dunes,mountain peaks,school,roads. 2.His name was eratosthenes. 2A.He was the one who told the people to leave. 3.They are flat maps distort the placement. 4.The directions are staight lines. 4A.Columbus was not sure how far he had to go. 5.Cities,rivers,and lakes. 6.Leonardo da vinci(1452-1519). 7.-96 (spole) to t 90 (n pole) degrees. 8.240 degrees east longitude.

: . . . . Thu, Oct 31, 1:02PM PST (-0800 GMT)
1.Magnetic compass,sextant,telescope,theodolite planetable, and the marine chain. 2.He was Eratosthenes. 2A.With shadows and distances.25,000 miles, 500 miles. 3.Navigation: The ability to find from one palce to another then back. 3A.Ernest,Henry Shackeleton,Columbus. 4.Latitude and longitude. 5.4A.Yes, he did establish the units of measurement. 6.Lasers, computers, and satelites in recent decades.U.S.A. 7.Latitude and longtitude are spherical coordinates on the surface of the earth. 7A.Longtitude,east or west Greenwich.

rwms Mario Ramos: . . . . Thu, Oct 31, 1:05PM PST (-0800 GMT)
#1 The sight,The mesuringchain,The magnetic compass, The sextant,the telescope,The thodile,The platable,and the marine crometer. #2 Eratosthenes #2a loking at things in the sky,his calculations were about 25,000 he was accurate 500 miles. #3 The ability to finda way back from one placeto another and back to come back. #3a Culumbus,Ernest henry shcklton and catino planisphere #4 distances, directions,shapes area,scale #4a No he did not #5 Versative,base fopographicmaps #6 To find where there at they calculate all the things. #7 Are mesurments, or cordinate on the surface of the earth. #7a It is in england

rwms Eddie Gamez & Jorge Sandoval: . . . . Thu, Oct 31, 1:07PM PST (-0800 GMT)
1. the magnetic compass, seatant,the telescope,the theodolite, the plantable and the chronometer. 2.Eratosthenes 2A.This calculation, about 25,000 miles, was accurate to within 500 miles. 3.Navigation is the ability to find a way from one place to another. 3A.Three famous explorers are columbus, Ernest Henry Shackleton,and Cantino Plainsphere 4.the basic unit of measurement for navigation are latitued and longitued. 4A.Yes he established these units of measurement. 5.THree types of maps are Versatile map ,earthquake map thermatic map. 6.They collect data from parts of the electromagnectic spectum outside the narrow band of visible light. 7.latitude and long are spherical coordinates on the surface of the Earth. 7A.It is loacted in England

dwayn palasek @ hotmail.com: . . . . Thu, Oct 31, 1:08PM PST (-0800 GMT)
1They used the magnetice compass,the sextant,a telescope, the theadolite,the planet tablet,and the marine cronometer. 2He estimated 25,000he was actually accurate at about 500 miles. 3The navigation is the abillity to go from one place to another and back.It was used to calculate were you were at. 4They are distanced directions,shapes,and areas. 4A.Yes,he also helped establish it. 5The things that they put one the map was citys states and park. 6It helped us help or find our way back were we came. 7Latitude are spherical cordinals on the surface.The Equatore is the parallel wich divides the globe into to halves the northern and the southern. 7A.Longitude is measured east and west of greenwich, and can be expressed in different ways.

rwms noe flores: . . . . Thu, Oct 31, 1:15PM PST (-0800 GMT)
1. They used magnetic compass, the sexrant telescope the odolite, planetable, marine choronometer. 2.His name was Eratosthenes. 2a.By using shadows and distances to calculate the circumfrence of the earth.His calculation was about 25,000 which was only off by 500 miles. 3.The ability to find a way from one place to another and back.It was used for wether you'd sirvive or not. 3a.They were Columbus,Sir Ernest Henry Shackelton,Cantino Planosphere. 4.They were lines of longitude and latitude. 4a.Yes, he did help establish them. 5.Veratile,topographic,thematic,earthquake and battle maps. 6.It gathers gravity magnetic, and other data, the sateliter are in space. 7.Latitude and longitude are spherical coordinates on the surface of the earth.any points above the equator is positive below is negative. 7a.Greenwich is located right of the prime meridian.

Arianna Fregoso/Nancy Aguirre : . . . . Thu, Oct 31, 1:16PM PST (-0800 GMT)
1.The six tools are magnetic copass, the sextant, the telescope, the theodolite, the plante table, and the marnie chronometer. 2.He was Eratosthenes. 2A.He used observations and shawdos and distance, to calculate. He was 500 miles within accuracy. 3.It is the ability to find a way from one place to another and back. It was used for traveling. 3A.The three famous explorers were Sir Ernest, Henry Shackleton, Cantino Plainishere, and Gerarduas Mercator. 4.The basic unit of measurements are longitude and latitude. 4A.Yes a mapmaker did help establish these three measurements. 5.The three types of maps are versstile, base, and topograph maps. It was science. 6.They helped electranmagnetic specteum outside. 7. They are shereical coordinates on the surface of the earth, it is used to navigate the range of south and north. 7A.Longitude is measured east.

Lauren Jones & Karen Millan: . . . . Thu, Oct 31, 1:19PM PST (-0800 GMT)
1.Simple gadgets,magetic compass,sextan,telescope,theodolite planetable,and the marine choronometer. 2.His name was Eratosthenes.2A.He did this by observtions of shadows and distance to conclude,his calculation was 25,000. 3.Navagation aws used for going one place to another and it use for distance.Sir Ernest Henry Shakleton,Cantino Planisphere,Columbus. 4.The measurement is used for distance,directions are called protections.4A.Yes they did established the units of the measurement. 5.They are versatible map science,special-purpose art map,thematicmap art. 6.To get photographs of the world they are located in science and technology. 7.They are spherical coordinates on the surface of the earth.7A -90(S pole)to +90(N pole)degrees.

rwms Laurie Quezada: . . . . Thu, Oct 31, 1:25PM PST (-0800 GMT)
1.The tools were magnetic compass,sextant,telscope,theodolite,plane table, marine,marine chronometer. 2.His name is Eratosthenes. 3.He estimated the distance bylooking at stars, planets and other objects in the sky. He estimated about 25,000 miles,to within 500 miles. 4.The basic units of masurements are longitued lines. 4a.Yes he did. 5.The names are the tographic map and the earth quake map. 6.It gathers gravet,magneic and other data. 7.Latitued and longitued are spherical coordietes.Below equator is positive, below equator is negative. 7a.Greenwhich is located on the prime maridian.

rwms Laurie Quezada: . . . . Thu, Oct 31, 1:25PM PST (-0800 GMT)
1.The tools were magnetic compass,sextant,telscope,theodolite,plane table, marine,marine chronometer. 2.His name is Eratosthenes. 3.He estimated the distance bylooking at stars, planets and other objects in the sky. He estimated about 25,000 miles,to within 500 miles. 4.The basic units of masurements are longitued lines. 4a.Yes he did. 5.The names are the tographic map and the earth quake map. 6.It gathers gravet,magneic and other data. 7.Latitued and longitued are spherical coordietes.Below equator is positive, below equator is negative. 7a.Greenwhich is located on the prime maridian.

rwms Laurie Quezada: . . . . Thu, Oct 31, 1:26PM PST (-0800 GMT)
1.The tools were magnetic compass,sextant,telscope,theodolite,plane table, marine,marine chronometer. 2.His name is Eratosthenes. 3.He estimated the distance bylooking at stars, planets and other objects in the sky. He estimated about 25,000 miles,to within 500 miles. 4.The basic units of masurements are longitued lines. 4a.Yes he did. 5.The names are the tographic map and the earth quake map. 6.It gathers gravet,magneic and other data. 7.Latitued and longitued are spherical coordietes.Below equator is positive, below equator is negative. 7a.Greenwhich is located on the prime maridian.

: . . . . Thu, Oct 31, 1:26PM PST (-0800 GMT)
1. The magnetic compass, the sextant,the telescope, the theodoite,the planetable,and marine chronometer

rwms Derek Graffious and Michael Villalobos: . . . . Thu, Oct 31, 1:27PM PST (-0800 GMT)
1.The magnetic compass,the sextant,the telescope,the theodolite,the planetable,the marine chrometer. 2.His name was Eratosthenes. 2A.He used obsevation of shadows and distances.He estimated 25,ooo miles,he was 500 miles close. 3.The ability to find a way from one place to another and back.It was used for traveling. 3A.The three people are Columbus,Polar explorers,and Sir Ernest Henry Shackleton.

rwms Godfried Weihs: . . . . Fri, Nov 1, 1:14PM PST (-0800 GMT)
1. Some tools that were used were the level, the sight, the measuring chain, the magnetic compass, the telescope, the sextant, the theodolite, the planettable,and the marine chronometer. 2. The Greek mathematicians name was Eratosthenes. 2a. He used the observations of shadows to estimate the circumference of the earth. The distance he estimated was 25,000 miles. He was very close to the correct measurement; he was off by 500 miles. 3. Navigation is the ability to find a way from one place to another and back. 3a. Three people who relied on navigation were Sir Ernest Henry Shakleton, Columbus, and Cantino Planisphere. 4. The basic units of measurement are distance, directions, area, and shapes. 4a. It is not said, the only information given is that the map makers helped establish the units of measurement. 5. A versatile and a base map show roads, towns, cities, rivers, lakes, etc. Another map is an earthquake map. The practice for map making is called spatial data. Map making is an art and science. 6.They help to look at the solar system, the tools are called sattelites. They are located in space. 7. Latitude and longtitude are spherical coordinates on the the surace of the earth. The equator is used to create plus and minus numbers by making anything above the equator positive, and anything below negative. 7a. It is located 120 degrees west and 240 degrees east.

Ana Ramos Laurie Quezada: . . . . Fri, Nov 1, 2:44PM PST (-0800 GMT)
1.They were the magnetic compass,sextant,telescope,theodolite,plane table,and the marine chronometer. 2.He was Eratosthenes.He used observations of shadows and distancesto calculate the circumference of Earth.He estimated about 25000 miles accurate to within 500 miles. 3.Navigation is the ability to find a way from one place to another and back.THey were Sir Ernest Henry Shackleton,Gerardus Mercator,and Christopher Columbus. 4.THe basic units are longitude and latitude.Yes he did helpin that. 5.They are battle maps,exploration maps,and a thematic maps. 6.They collect data from parts of the electromagnetic spectrum. 7.They are spherical coordinates on the surface of the earth.It is in a 90 degree angle.It is located in England.

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